689692239392 has 162 divisors, whose sum is σ = 1540157599701. Its totient is φ = 303859395840.

The previous prime is 689692239349. The next prime is 689692239421. The reversal of 689692239392 is 293932296986.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 589707269776 + 99984969616 = 767924^2 + 316204^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=587236.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1404668267 + ... + 1404668757.

Almost surely, 2^689692239392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689692239392

689692239392 is an abundant number, since it is smaller than the sum of its proper divisors (850465360309).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689692239392 is an equidigital number, since it uses as much as digits as its factorization.

689692239392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 529 counting only the distinct ones).

The product of its digits is 136048896, while the sum is 68.

The spelling of 689692239392 in words is "six hundred eighty-nine billion, six hundred ninety-two million, two hundred thirty-nine thousand, three hundred ninety-two".